Cfrgtkky

In my case the cause was missing SERVER_EMAIL setting.

The default for SERVER_EMAIL is root@localhost. But many of email servers including
my email provider do not accept emails from such suspicious addresses. They silently drop the emails.

Changing the sender email address to django@my-domain.com solved the problem. In settings.py:

SERVER_EMAIL = 'django@my-domain.com'

Another possibility for error is trouble with your ADMINS setting. The following setting will cause the sending of mail to admins to fail quietly:

ADMINS = (

  ('your name', 'me@mydomain.com')

)

What's wrong with that? Well ADMINS needs to be a tuple of tuples, so the above needs to be formatted as

ADMINS = (

  ('your name', 'me@mydomain.com'),

)

Note the trailing comma. Without the failing comma, the 'to' address on the email will be incorrectly formatted (and then probably discarded silently by your SMTP server).

I had the same situation. I created a new project and app and it worked, so I knew it was my code. I tracked it down to the LOGGING dictionary in settings.py. I had made some changes a few weeks back for logging with Sentry, but for some reason the error just started today. I changed back to the original and got it working:

LOGGING = {

    'version': 1,

    'disable_existing_loggers': False,

    'handlers': {

        'mail_admins': {

            'level': 'ERROR',

            'class': 'django.utils.log.AdminEmailHandler'

        }

    },

    'loggers': {

        'django.request': {

            'handlers': ['mail_admins'],

            'level': 'ERROR',

            'propagate': True,

        },

    }

}

Then, I made some changes slowly and got it working with Sentry and emailing the ADMINS as well.

Additionally, the LOGGING configuration gets merged with DEFAULT_LOGGING by default, so it's useful to have a look at the source code of django.utils.log.DEFAULT_LOGGING to understand what else may have an effect on your particular situation.

Make sure your EMAIL_HOST and EMAIL_PORT are set up right in settings.py (these refer to your SMTP server). It might be assuming that you have an SMTP server running on localhost.

To test this locally, run Python's built-in test SMTP server:

python -m smtpd -n -c DebuggingServer localhost:1025

Then set these values in your settings.py

EMAIL_HOST='localhost'

EMAIL_PORT=1025

Trigger a 500 error, and you should see the e-mail appear in the python smtpd terminal window.

My web hosting provider - Webfaction - only allows emails to be sent From an email that has been explicitly created in the administrator panel. Creating one fixed the problem.

Another thing worth noting here is that settings handler500 might bypass the mechanism that sends errors on a 500 if the response from the view doesn't have a status code of 500.
If you have a handler500 set, then in that view respond with something like this.

t = loader.get_template('500.html')

response = HttpResponseServerError(

    t.render(RequestContext(request, {'custom_context_var': 

        'IT BROKE OMG FIRE EVERYONE'})))

response.status_code = 500

return response

Try this

# ./manage shell

>>> from django.core.mail import send_mail

>>> send_mail('Subject here', 'Here is the message.', 'from@example.com',['to@example.com'], fail_silently=False)

With a to@example.com that you actually get email at.

Make sure you have DEBUG = False

Sorry if it is too naive, but in my case the emails were sent but were going directly to the SPAM folder. Before trying more complicated things check your SPAM folder first.

Although it's been a while, here's my response, so that other people can benefit in the future.

In my case, what was preventing emails to be sent to the ADMINS list, when an error occured, was an application specific setting. I was using django-piston, which provides the setting attributes PISTON_EMAIL_ERRORS and PISTON_DISPLAY_ERRORS. Setting these accordingly, enabled the application server to notify my by mail, whenever piston would crash.

If, for some reason, you set DEBUG_PROPAGATE_EXCEPTIONS to True (it's False by default), email to admin will not work.

... and then there's the facepalm error, when you've used this in development to prevent emails from going out, and then accidentally copy the setting to production:

# Print emails to console

EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'

(of course you don't see them being printed to console when using a wsgi server). Removing the setting from production fixed this for me.

Just had the same issue after upgraded to Django 2.1 from Django 1.11. Apparently the ADMINS sections in settings.py has a change. It takes a list of tuples now, rather than the old tuple of tuples. This fixed for me.

##### old #####

ADMINS = (

    ("Your Name", "your_email@company.com")

)



##### new #####

ADMINS = [

    ("Your Name", "your_email@company.com")

]

Re: https://docs.djangoproject.com/en/2.1/ref/settings/#admins

While likely not ideal, I have found using Gmail as the SMTP host works just fine. There is a useful guide at nathanostgard.com.

Feel free to post your relevant settings.py sections (including EMAIL_*, SERVER_EMAIL, ADMINS (just take out your real email), MANAGERS, and DEBUG) if you want an extra set of eyes to check for typos!

For what it's worth I had this issue and none of these suggestions worked for me. It turns out that my problem was that SERVER_EMAIL was set to an address that the server (Webfaction) didn't recognise. If this site were hosted on Webfaction (as my other sites are), this wouldn't be a problem, but as this was on a different server, the Webfaction servers not only check the authentication of the email being sent, but also the From: value as well.

In my case, it's the include_html in mail_admins.

When I set include_html to True,the email server reject to send my email because it think that my emails are spam.

Everything works just fine when I set include_html to False.

And yet another thing that can go wrong (I'll just add it to the list, for those people that end up here despite all the great answers above):

Our django setup used SendGrid as the smtp host and had a single admin email-address defined in the django settings. This worked fine for some time, but at some point, mails stopped arriving.

As it turns out, the mail address ended up in the SendGrid 'Bounced' list for some unknown reason, causing emails to that address to be silently dropped forever after. Removing the address from that list, and whitelisting it, fixed the issue.

If you are using or would want to use SendGrid, use the settings below in production.

Install the package

pip install sendgrid-django

Add these settings in settings.py(production)

DEBUG = False



EMAIL_BACKEND = "sendgrid_backend.SendgridBackend"



SENDGRID_API_KEY = "That you generate in sendgrid account"



ADMINS = (

    ("Your Name", "your_email@company.com")

)

The below info is given in https://docs.djangoproject.com/en/2.1/howto/error-reporting/#email-reports

EMAIL_HOST = "email host"



EMAIL_HOST_USER = "Email username"



EMAIL_HOST_PASSWORD = "Email Password"



DEBUG = False



ADMINS = (

    ("Your Name", "your_email@company.com")

)

In order to send email, Django requires a few settings telling it how
to connect to your mail server. At the very least, you’ll need to
specify EMAIL_HOST and possibly EMAIL_HOST_USER and
EMAIL_HOST_PASSWORD, though other settings may be also required
depending on your mail server’s configuration. Consult the Django
settings documentation for a full list of email-related settings.